<?php

namespace App\Models;

use App\Models\Concerns\BelongsToCompany;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class PrePayment extends Model
{
    use BelongsToCompany;

    protected $table = 'pre_payments';

    public const STATUS_PENDING = 'pending';

    public const STATUS_DEDUCTED = 'deducted';

    public const STATUS_CANCELLED = 'cancelled';

    protected $fillable = [
        'company_id', 'user_id', 'advance_date', 'installment_group_id',
        'installment_number', 'installment_count', 'total_amount',
        'amount', 'month', 'year', 'status', 'notes',
    ];

    protected $casts = [
        'amount' => 'decimal:2',
        'total_amount' => 'decimal:2',
        'advance_date' => 'date',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function isInstallmentPlan(): bool
    {
        return $this->installment_group_id !== null
            && $this->installment_count !== null
            && $this->installment_count > 1;
    }

    public function installmentLabel(): ?string
    {
        if (! $this->isInstallmentPlan()) {
            return null;
        }

        return sprintf('%d / %d', $this->installment_number, $this->installment_count);
    }
}